A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

This museum is dedicated to the little known ancient Roman history of Vienna.

A glimpse into the festive and private lives of medieval Europe.

An enormous and lavish Gothic church in Czechia.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

A church of bones, decorated with 40,000 human skeletons.

Rusty pieces of metal jutting out of a breakwater are all that's visible of the 12,500-ton ocean liner that capsized just off the beach.

French prisoners carved these boats from the bones of their meat rations.

A crumbling watchtower and a lighthouse overlooks the site believed to be the Sirens' cliff in the "Odyssey."

A former Roman town that was once the home of Scipio Africanus.

The ruins of this temple were later chosen by Pope Celestine V to found an abbey and a hermitage.

This ancient Roman bridge was a key feature of the ancient Via Salaria road.

This 21st century cabinet of curiosities includes dinosaur bones, moon rocks, film memorabilia, and more.

This region of the Perugia municipality has an unforgettable name.

A unique Tuscan hideaway acts as an art mecca as well as a hotel.

The eerie ruins of this feudal fortress witnessed the execution of 60 conspirators in 1387.

This lesser-known leaning tower is all that remains of the medieval castle of Vernazzano.

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

This temple was constructed entirely by Roman soldiers.

A grove of "candelabra redwoods" deep in California's Lost Coast.

Mexican food and folk art.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

This outdoor observatory offers stellar views and a scale model of our solar system.